From J. Taylor Rushing:
President Barack ObamaBarack Hussein ObamaBiden calls for unity, jabs at Trump in campaign launch Several factors have hindered 'next up' presidential candidates in recent years Lewandowski: Why Joe Biden won't make it to the White House — again MORE on Saturday linked the struggling U.S. economy and fragile national security to that of the world, particularly singling out the country's ties to onetime foes China and Russia.

The president, in Europe for the G-20 summit and his first overseas visits, also hailed his work at the economic meeting to convince other countries that their fates are tied to with America's, in a clear bid to convince the country away from any trend toward isolationism. Among the reasons to do so, Obama said: safety.

"The challenges of our time threaten the peace and prosperity of every single nation, and no one nation can meet them alone," Obama said in his weekly address. "That is why it is sometimes necessary for a president to travel abroad in order to protect and strengthen our nation here at home. That is what I have done this week."

Obama arrived in London on Tuesday for the G-20 summit, announcing on Thursday an agreement for the world's top economies to contribute more than $1 trillion in loans and guarantees, as well as $750 billion to the International Monetary Fund, plus new regulations for the world's financial markets. The president seized on that news Saturday, emphasizing that the U.S. economy is linked to those overseas.

"Ultimately, the only way out of a recession that is global in scope is with a response that is global in coordination," he said. "That is why I